Meng Li's research while affiliated with Wuhan University of Technology and other places

Publications (65)

Article
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The overall goal of this research was to develop the Vis/BC-BiOI/PMS system, integrating multiple advanced oxidation technologies, to effectively treat Enrofloxacin (ENR), a typical antibiotic pollutant known for its resistance to degradation. The modified biochar underwent thorough characterization, including analysis of its structure, morphology,...
Article
With pyrite (FeS2) and polycaprolactone (PCL) as electron donors, three denitrification systems, namely FeS2-based autotrophic denitrification (PAD) system, PCL-supported heterotrophic denitrification (PHD) system and split-mixotrophic denitrification (PPMD) system, were constructed and operated under varying hydraulic retention times (HRT, 1-48 h)...
Article
In order to examine the impact of Cu(II)-Cr(VI) co-pollution in printing and dyeing wastewater on the aniline biodegradation system (ABS), loading experiments were conducted on ABS at varying concentrations of Cu(II)-Cr(VI). The synergistic stress imposed by Cu(II)-Cr(VI) accelerated the deterioration of the systems, with only the C2-3 (2 mg/L Cr(V...
Article
To explore the influence mechanism of different concentrations of salinity on the electro-enhanced aniline biodegradation system, a control group and experimental groups (0%-NaCl, 0.5%-NaCl, 1.5%-NaCl, 2.5%-NaCl, 3.5%-NaCl) were established. The experimental results showed that the electric field strengthened the denitrification performance, while...
Article
In order to explore the stress principle of Cr (Ⅵ) on aniline biodegradation system, a control group and experimental groups with the concentration of Cr (Ⅵ) at 2, 5, 8 mg/L were set up. The results demonstrated that Cr (Ⅵ) had minimal effects on the degradation efficiency of aniline but significantly inhibited nitrogen removal function. When Cr (Ⅵ...
Article
On account of the lack of a sustainable electron donor source and the inhibitory effect of aniline on denitrogenation make it tough to achieve simultaneous removal of aniline and nitrogen. Herein, the strategy of adjusting electric field mode was applied to the electro-enhanced sequential batch reactors (E-SBRs: R1 (continuous ON), R2 (2 h-ON/2 h-O...
Article
In this study, an adaptable HRP/GOX-Glu system was established due to the trait, efficient degradation of pollutants in the catalytic process of HRP named the ping-pong bibi mechanism and a sustained release of H2O2 in-situ under the catalysis of glucose oxidase (GOX). Compared with the traditional HRP/H2O2 system, the HRP was more stable in the HR...
Article
Integrated fixed-film activated sludge (IFAS) system has considerable advantages in treating aniline wastewater economically and efficiently. However, the response mechanism of IFAS to aniline needs further study. Herein, IFAS in continuous-flow (CF-IFAS) and batch mode (B-IFAS) were set up to investigate it. The removal efficiency of aniline excee...
Article
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A three-dimensional (3D) anode is essential for high-performance microbial fuel cells (MFCs). In this study, 3D porous carbon monoliths from a wax gourd (WGCM) were obtained by freeze-drying and carbonization. Nano-TiO2 was further coated onto the surface of WGCM to obtain a nano-TiO2/WGCM anode. The WGCM anode enhanced the maximum power density of...
Article
With the widespread introduction of pre-coagulation prior to the biological unit in various industrial wastewater treatments, it is noteworthy that long-term accumulation of residual coagulants has certains effect on both micro and macro characteristics of activated sludge (AS). In this study, the morphology distributions of residual aluminum salts...
Article
Modified metal-organic framework (MOF) materials are promising adsorbents for phosphate removal in aquatic environment. Herein, a high-efficiency and eco-friendly La/Ca composite (La/Ca-BTC) was designed by calcining La/Ca MOFs for phosphate adsorption. Batch adsorption experiments showed that La/Ca-BTC-3/1 (La: Ca molar ratio of 3: 1) had an excel...
Article
Fenton reaction has been widely applied with fast reaction speed and strong oxidation capacity, but it also has some noticeable defects of acid-alkali reagents over-consumption and strong tendency of H2O2 self-decomposition under high concentration. In order to overcome these shortcomings, this study proposed a green rust/Kaolin fixed glucose oxida...
Article
Full-text available
Up to date, the intrinsic association of nitrate loading rate (NLR) with treatment performance of solid-phase denitrification (SPD) systems is still ambiguous. To address this issue, three continuous up-flow bioreactors were configured. They were packed with polycaprolactone (PCL) under a filling ratio of 30%, 60% or 90% and were operated under a v...
Article
The traditional air flotation device with a single structure cannot fully satisfy the requirements of oil droplets growth at different conglomeration stages in CREW (cold-rolling emulsion wastewater) treatment, thus leading to relatively poor demulsification effect. To address this concern, a novel integrated sequential air flotation device was car...
Article
It is of great significance for the operation and management of waterworks to accurately predict the raw water quality. In this study, the turbidity and CODcr of raw water with light industrial-agricultural pollution are predicted based on the long-term water quality data of Bayi Waterworks in Xiaogan. In order to solve the problem that the traditi...
Article
Current treatment processes for the cold rolling emulsion wastewater were in the dilemma that the cost was so high while the efficiency was not satisfied in China. In this work, a novel material with high-performance demulsification was obtained and used to treat the emulsion wastewater efficiently by modifying blast furnace dust (BFD), a steel ind...
Article
An electro-enhanced sequencing batch reactor (E-SBR) was constructed to treat 400 mg/L aniline wastewater and realized system rapid start-up. The aniline degradation efficiency was almost 100% and the total nitrogen removal rate was 80% in the E-SBR. High-throughput sequencing showed that the microbial community in E-SBR changed greatly. At genus l...
Article
Manganese dioxide (MnO2), a commonly find oxidant in both natural environment and industrial application, plays a crucial role for various organic compound degradation. Tuning the MnO2 crystal structure is a cost-effective strategy to boost the oxidation reactions, where the challenge remains due to lacking in-depth investigation of the crystal pro...
Article
The Fenton reaction is regarded as highly efficient for the degradation of organic contaminants. However, the traditional Fenton reaction is still flawed in a narrow pH working range and low utilization efficiency of the reagents. Based on two striking features, a sustained release of H2O2 in-situ under the catalysis of glucose oxidase (GOX) and th...
Article
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Generally, the purification performance of bioreactors could be influenced by temperature variation via shaping different microbial communities. However, the underlying mechanisms remain largely unknown. Here, the variation trends of microbial communities in three sequencing batch biofilm reactors (SBBRs) under four different temperatures (15, 20,...
Article
A novel method of plant enrichment for ZnO nanoparticles (ZnO NPs) and pyrolysis was employed to gain the ZnO/biochar (ZnO/BC) composites. Comparing to pristine biochar and two zinc oxides/biochar composites obtained by conventional metal salts impregnation method, here the ZnO/BC exhibited distinct advantages in persulfate (PS) activation for tetr...
Article
Comparative evaluation of SBRs under different modes (AX/O, AN/AX/O, AN/O/AX, O/AX) with same aniline wastewater arrangements, presenting the startup and performance differences of reactors. The results revealed that the four systems realized the efficient aniline and NH4⁺-N removal on the basis of sufficient aerobic time. Anaerobic aniline degrada...
Article
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In this study, a set of novel double-layer-packed sequencing batch biofilm reactors (SBBRs) were constructed to treat secondary effluent with a low carbon-to-nitrogen ratio (C/N = 3.0). All the reactors were operated under identical conditions except dissolved oxygen (DO) in the aerobic section, which was controlled at seven different levels (0.5,...
Article
In this study, three up-flow fixed-bed bioreactors were constructed with three different filling ratios (filling volume/effective volume: 30%, 60% and 90%) of polycaprolactone (PCL). Above 98% of nitrate removal efficiency was achieved with low accumulations of nitrite and ammonium for each filling ratio. Low filling ratio of PCL had extensive fold...
Article
3,4-dimethyl-aniline is a stubborn organic matter and widely appears in many industrial wastewaters. A novel method Hybrid Photo-electrocatalytic Oxidation (HPECO) combining Photocatalytic Oxidation (PCO) with Electrocatalytic Oxidation (ECO) was established to treat it. The removal efficiencies were compared among HPECO, PCO and ECO systems and th...
Article
An enhanced sequencing batch reactor (SBR) system was developed to treat synthetic wastewater rich in 600 mg/L aniline. The aniline degradation efficiency was almost 100%, and the total nitrogen (TN) removal rate was more than 50%. Metagenomics technology revealed the community structure, functional genes and metabolic mechanism during the start-up...
Article
The poorly controlled discharge of coffee husks in Ethiopia causes severe environmental pollution and is a waste of resources. The volatile solid and carbon content in coffee husks waste indicates that it is rich in organic matter and has huge potential to produce biogas. This study investigated the feasibility of coffee husks to produce biomass th...
Article
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Textile and dyeing wastewater is the major source of environmental water pollution all over the world, which has complex composition so that conventional methods are difficult to remove and degrade. Based on the relevant research, this paper proposes to add further treatment by using macroporous resins on the basic of the conventional treatment and...
Article
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Here, 3,4-dimethylaniline (3,4-DMA) was selected as a representative organic substance of aniline compounds. A biochar-titanium dioxide (BC-TiO 2) composite was prepared by the sol−gel method to investigate its adsorption ability toward the 3,4-DMA compound. Simultaneously, the prepared composite's adsorption ability and physical and physicochemica...
Article
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In this paper, experimental study had done in view of the wastewater which discharged from chlorine alkali factory propylene oxide production workshop in Zibo city of Shandong Province. The Pre-oxidation + Biological Contact Oxidation craft has proposed for the epoxy propane production wastewater treatment. In view of the characteristics of this ki...
Article
To meet the increasing stringent discharge standards, many wastewater treatment plants (WWTPs) are impelled to execute tertiary treatment, among which advanced nitrogen removal is still the key. An effective alternative for advanced nitrogen removal is sequencing biofilm batch reactor (SBBR), whose performance is closely related to dissolved oxygen...
Article
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In this study, the impact of different aeration sequences, hydraulic retention time (HRT), aeration time ratios and external carbon types on performance of biofilters treating secondary effluent during start-up was explored. For an intermittently aerated nitrifying filter, the adjustment of aeration sequence with prior nitrification or denitrificat...
Article
This study introduced a new approach for simultaneously enhancing Cr(VI) removal performance and mitigating release of dissolved Fe during nanoscale zero-valent iron (nZVI)-mediated reactions. After entrapping nZVI-impregnated biochar (BC) in the matrix of calcium-alginate (CA) bead, the physicochemical characterization of nZVI/BC/CA composites rev...
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A new integrated device—inverted A2/O–MBR process for rural domestic sewage treatment was designed and investigated in this study. The device consisted of three components orderly referred to the anoxic zone, anaerobic zone and aerobic zone where a MBR membrane group was arranged. Results showed that the device was favorable to treat rural domestic...
Article
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In order to understand the two-stage A/O process which contained two independent A/O (Anoxic/Oxic) subsystems when applied to treat high-strength ammonia nitrogen wastewater, connection mode of the two A/O subsystems and DO concentration of oxic phase were selected as the influencing factors in this paper. The connection modes of the two independen...
Article
To explore the effects of aeration, microbial acclimation period, and pool shape or flow pattern change on the purification efficiency of biofilters at the microbiological level, four biofilters with different working conditions, that is, MAVF, NAVF, NVF, and BHF, were studied. The first three are vertical-flow biofilters and the last one is a baff...
Article
Conversion of carcinogenic Cr(VI) to less toxic Cr(III) has long been regarded as the most efficient and effective method to remediate Cr(VI)-contaminated water. However, the widely used reducing agents such as nano zero-valent iron (nZVI) and its derivatives often have low stability and their applications in water treatment may introduce secondary...
Article
This paper was aimed at investigating the bio-augmentation performance of anaerobic/aerobic/anoxic-type sequencing batch reactor (SBR) during its start-up period by introducing a strain of denitrifying polyphosphate-accumulating organism (DPAO). Two SBR reactors were inoculated to study the start-up performance, with one for DPAO introduction and t...
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Magnetic chitosan particles (MCS) were chemically grafted by m-phenylenediamine (mPD) forming a distinctive shell layer with abundant nitrogenous functional groups and used as an adsorbent for the effective removal of Cr(VI) from aqueous solution. By interaction among functional groups in the facile oxidative polymerization process, the grafting of...
Article
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In this work, a KMnO4-modified-biochar-based composite material with manganese oxide produced at 600 °C was fabricated to investigate the sorption mechanism of Cd(II) and to comprehensively evaluate the effect of the modification on biochar properties. Cd(II) adsorption mechanisms were mainly controlled by interaction with minerals, complexation wi...
Article
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To obtain a better understanding of effect of sulfate in the treatment of high strength ammonia organic wastewater, we mainly studied the critical concentration of sulfate sludge could endure, the transformation of main microbial phases and the effluent parameters with the sulfate concentration of influent water increasing in anaerobic-aerobic (A/O...
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At present, an innovative manganese-carbon (Mn-C) microelectrolysis material was initially put forward by our research group and has already obtained the Chinese invention patent. Moreover, this technology has been widely applied in industrial facilities for pretreating high-concentration organic wastewater across China. Synthesis and characterizat...
Article
In this work, a long-term observation on fifteen different constructed wetlands covering diverse scales, flow regimes, substrates, plants and operating conditions was obtained and their performance was comparatively assessed by multivariate analyses. The fifteen wetlands were sorted into five categories: i.e. two conventional horizontal flows (CHF)...
Article
The financial and social contributions of coffee processing industries within most coffee export-based national economies like Ethiopia are generally high. The type and amount of waste produced and the waste management options adopted by these industries can have negative effects on the environment. This study investigated the solid waste managemen...
Article
Constructed rapid infiltration systems (CRIS) are a reasonable option for treating wastewater, owing to their simplicity, low cost and low energy consumption. Layered double hydroxides (LDHs), novel materials with high surface area and anion exchange capacity, faced the problem of the application in CRIS due to the powdered form. To overcome this s...
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A new terpolymer named β-CD-MA-SSS was produced using free-radical polymerization of β-cyclodextrin (β-CD), maleic-anhydride (MA) and sodium-styrene-sulfonate (SSS) as monomers, with potassium persulfate (KPS) as initiator. Its performance as a scale inhibitor to prevent deposition of calcium carbonate (CaCO3) has been investigated. Experimental re...
Article
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The capability of anoxic-aerobic (A/O) process treatment and influencing factors of high concentration ammonia industrial wastewater were studied in this paper. Results showed that the A/O process system had achieved favorable performance and the quality of effluent could meet the direct emission standard of Discharge standard of water pollutants f...
Article
Natural organic matter, consisting of 40–60% of humic substances of which the main ingredient is humic acid (HA), is ubiquitous in natural water systems. It poses a potential threat to a water treatment system. Metal oxides in the form of minerals in water are usually considered as carriers of HA. The main adsorption mechanisms of HA on metal oxide...

Citations

... Moreover, the GOD enzyme performed well in the laboratory with pure glucose solutions. However, it has been reported that the GOD enzyme degrades after 48 h, resulting in a decreased signal responsiveness over time [21]. This challenge becomes more complex when the biosensing platform is intended for extended use, such as 30 days. ...
... Consequently, the vulcanization of nZVI has emerged as a promising avenue for developing a novel composite material that can efficiently remove contaminants from wastewater. The FeS shell of S-nZVI/BC blocked the external air and slowed down the corrosion rate of the internal Fe 0 by water and dissolved oxygen, enhancing the removal capacity of Acid Red on S-nZVI/BC compared to nZVI/BC, S-nZVI, and BC (Ding et al., 2023). ...
... This economic benefit related to the operation and maintenance of the proposed stimulation system represents a significant advantage over other similar solutions. It should be mentioned that the studies reported in the literature are performed on laboratory-scale systems, like the lab-scale sequential batch reactors in [60]. When referring to the real scale, a series of advantages and disadvantages have been reported, ref. [61] like how the initial investment represents one third to one half of a conventional wastewater treatment plant, the greenhouse gases emissions are lower, but the necessary land to be occupied by the plant is 9 times higher. ...
... However, the addition of CAT had a strong inhibitory effect on the degradation of BPA by CN-HRP@ZIP (Fig. 7b), suggesting that HRP successfully combined with hydrogen peroxide regenerated in situ in the CN-HRP@ZIP system to form the corresponding complex and promote the degradation of BPA. In addition to traditionally producing a series of Fe IV -containing oxidizable complexes with H 2 O 2 [47], research results in recent years show that it can also produce·O 2 − and·OH by decomposing H 2 O 2 [48]. The specific reaction process was shown in the following equations. ...
... PPT exhibited a broad band at 3410 cm − 1 , representing the stretching vibration of -OH, and a band at 1767 cm − 1 indicating the presence of -C=O group in PPT (Dnyaneshwar Veer et al., 2023). The IR band at 1152 cm − 1 confirmed the existence of -C-O stretching vibration, and the band at 1246 cm − 1 revealed the presence of PPT rings (Zhao et al., 2023). The FT-IR spectrum of Hex-CCP displayed several notable bands, including those at 1168 cm − 1 and 875 cm − 1 indicating the occurrence of P=N and P-N stretching vibration, respectively, and a sharp intense band at 609 cm − 1 attributed to the P-Cl bond vibration in the Hex-CCP structure (Tataroglu et al., 2018;Abbass et al., 2022). ...
... Additionally, La/Ca-BTC demonstrated the capability to concurrently eliminate natural organic matter (NOM), offering substantial implications for aquatic remediation strategies. These findings hold significant implications for advancing the field of environmentally friendly phosphate adsorbents, highlighting their potential for sustainable aquatic pollutant mitigation [51]. Ca-MOFs serve as versatile tools in the realm of environmental remediation. ...
... The amount of H2O2 produced depends on both the concentration of the biocatalyst and glucose. Indeed, according to the Michaelis-Menten model, at low concentrations of glucose, the rate of H2O production is linearly proportional to its initial amount, but the reaction rate decrease when the glucose concentration increases until reaching a maximum value, which, in turn depends on the concentration of GOx [48,183]. ...
... Numerous studies in the past have attempted to detect water pollution through the use of machine learning (ML) and artificial intelligence (AI) models [9][10][11]. One such study, conducted by Pu et al., utilized a convolutional neural network (CNN) featuring a hierarchical structure to depict the correlation between in situ water-quality levels and Landsat8 images [12]. ...
... An emulsion is a mixture of water, base oil, surfactants, additives, etc., in a certain proportion [1,2]. Due to the characteristics of cooling, lubrication, and pressure transfer, emulsions are widely used in the cutting and grinding processes of machine parts in mechanical manufacturing and metal processing industries [3,4]. ...
... Additionally, genes related to nitrogen fixation (nifU, nifS, vnfA) were annotated in strain DC-2. The annotation of the urtABCDE cluster and the ureABCDEFGJ cluster indicated the potential for strain DC-2 to utilize urea, revealing its potential for biological nitrogen fixation [36]. In the pathway of ammonium assimilation, we have identified genes associated with both the glutamate dehydrogenase pathway (gdh2, gdhA) and the glutamine synthetaseglutamate synthase pathway (gltBD and glnAEGKL). ...